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What is a glassy rock?
Obsidian is a naturally occurring volcanic form of glass.
Is obsidian metamorphic igneous or sedimentary?
Obsidian is an igneous rock.
What does rock group does obsidian belong to?
Obsidian is in the Igneous rock group.
How does obsidian rock get its different colors?
how can a blue obsidian rock be blue
Is obsidian extrusive rock?
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Is volcanic rock obsidian?
No. Obsidian is just one of many types of volcanic rock.
Teotihuacan is famous for artifacts made from?
Volcanic rock.
What is the obsidian rock type?
Obsidian is an extrusive felsic igneous rock.
Should companies buy obsidian?
If their business is in dealing with obsidian products, and they do not own any obsidian mines, then yes they will need to buy it. If however they do not need obsidian then they do not have to buy it.
How was the rock obsidian made?
Obsidian is a volcanic or igneous rock. It is formed when lava dries up.
What igneous rock has no visible crystals?
Granite is a coarse grained igneous rock without Pyroxene.
Dark igneous rock formed from lava?
obsidian obsidian
